package Collection;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;

public class GenericDemo {
    public static void main(String[] args) {
        /*
        Collection<String>c=new ArrayList<>();   //泛型整合
        c.add("11");
        c.add("22");
        c.add("33");

        //迭代器所指定的泛型应当与其遍历的集合的泛型一致
        Iterator<String>it= c.iterator();
        while (it.hasNext()){
            String str=it.next();
            System.out.println(str);
        }
        for (String str:c){
            System.out.println(str);
        }

         */

        Collection<Point>c=new ArrayList<>();
        c.add(new Point(1,2));
        c.add(new Point(2,3));
        c.add(new Point(3,4));

        Iterator<Point>it= c.iterator();
        while (it.hasNext()){
            Point p= it.next();
            System.out.println(p);
        }
        for (Point p:c){
            System.out.println(p);
        }

    }
}
